Terrion Murdix and Deon Mathews scored 14 points each, James Dent added 13 and Stepheon Sims chipped in 11 as Southeast ran away from Lincoln for a 66-43 sectional championship victory.
Southeast led it 23-11 after a quarter and 50-28 after three quarters. The Spartans will play East St. Louis on Tuesday night at the Bank of Springfield Center for a trip to state.